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Project Description

loggerglue is intended to be a general purpose glue layer for the syslog protocol as decribed in rfc5424 and rfc5425.

This package includes:

  • a pyparsing parser for rfc5424
  • a wrapper class for rfc5424 syslog entries
  • an emitter for syslog messages, and associated convenience classes
  • a SyslogServer class supporting TLS (rcf5425)

A client example

Log a simple message with structured data to the local syslog daemon:

from loggerglue import logger
from loggerglue.rfc5424 import SDElement
from loggerglue.constants import *
l = logger.Logger()
l.log(prival=LOG_INFO|LOG_USER,
      msg="Test message",
      structured_data=[
          SDElement("origin",
              [("software","test script"), ("swVersion","0.0.1")])
      ])

A trivial server example

A simple TLS enabled server can be built as follows:

from loggerglue.server import SyslogServer, SyslogHandler

class SimpleHandler(SyslogHandler):
    def handle_entry(self, entry):
        print 'On %s from %s: %s' % \
                (entry.timestamp, entry.hostname, entry.msg)

s = SyslogServer(('127.0.0.1', 6514), SimpleHandler,
                 keyfile='loggerglue-key.pem',
                 certfile='loggerglue-cert.pem')
s.serve_forever()

Here’s an example rsyslog configuration:

$IncludeConfig /etc/rsyslog.d/*.conf

$DefaultNetstreamDriverCAFile /path/to/loggerglue-ca-cert.pem
$DefaultNetstreamDriver gtls
$ActionSendStreamDriverMode 1
$ActionSendStreamDriverAuthMode anon

*.* @@(o)localhost:6514;RSYSLOG_SyslogProtocol23Format

A more advanced server example

In this exemple we index the log data as it comes using Whoosh.

from loggerglue.server import SyslogServer, SyslogHandler
from whoosh import index
from whoosh.fields import *
import os.path

schema = Schema(prio=ID(stored=True),
                timestamp=DATETIME(stored=True),
                hostname=ID(stored=True),
                app_name=ID(stored=True),
                procid=ID(stored=True),
                msgid=ID(stored=True),
                msg=TEXT(stored=True)
                )

if os.path.exists('indexdir'):
    ix = index.open_dir('indexdir')
else:
    os.mkdir('indexdir')
    ix = index.create_in('indexdir', schema)

class SimpleHandler(SyslogHandler):
    def handle_entry(self, entry):
        writer = ix.writer()
        writer.add_document(prio=entry.prival,
                            timestamp=entry.timestamp,
                            hostname=entry.hostname,
                            app_name=entry.app_name,
                            procid=entry.procid,
                            msgid=entry.msgid,
                            msg=entry.msg)
        writer.commit()

s = SyslogServer(('127.0.0.1', 6514), SimpleHandler,
                 keyfile='loggerglue-key.pem',
                 certfile='loggerglue-cert.pem')
s.serve_forever()

And now a small search tool:

from whoosh import index
from whoosh.qparser import QueryParser

import sys
if len(sys.argv) == 1:
    print 'usage: %s <search terms>' % sys.argv[0]
    sys.exit(1)

ix = index.open_dir('indexdir')
searcher = ix.searcher()
query = QueryParser('msg').parse(' '.join(sys.argv[1:]))
results = searcher.search(query)
print '%d results\n' % len(results)
for r in results:
    print '%s\n' % str(r)
searcher.close()

1.0 (25/03/2011)

  • Wladimir van der Laan <laanwj@gmail.com>
    • Add Sphinx-based documentation and docstrings
    • Emitter for syslog messages, and associated convenience classes
    • Fixes for RFC 5424 edge cases
    • Allow multiple of the same key in STRUCTURED-DATA by representing the parameters using a multidict

0.9 (28/01/2011)

  • Initial release.
Release History

Release History

1.0

This version

History Node

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0.9

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
loggerglue-1.0.tar.gz (19.3 kB) Copy SHA256 Checksum SHA256 Source Mar 25, 2011

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